Search found 32 matches

by Mike Potter
Tue Sep 17, 2013 9:56 pm
Forum: Outbursts, Alerts, Monitoring
Topic: PNV J20233073+2046041 mag 6.8
Replies: 257
Views: 289409

Re: PNV J20233073+2046041 mag 6.8

I have just finished up with participation in this summer's WR campaign - I have a C14+LHiRes. Clear skies tonight. What spectral range should I concentrate on? I'm assuming there will be lots of people at H-alpha, but maybe being a bit further west of Europe (where it seems most of the observers ar...
by Mike Potter
Wed Apr 10, 2013 4:07 am
Forum: Spectroscopes and Softwares
Topic: New SBIG Spectrogrtaph
Replies: 3
Views: 3623

Re: New SBIG Spectrogrtaph

What I gathered from the article was that the new spectrograph would be useful to determine the appropriate color to use to create flat fields. I've run into that sort of problem myself - doing flat fields with twilight flats, though my skies are green/yellow from sodium lamps (I'm very near the cen...